<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <!--    移动端理想布局视口标签-->
  <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,
    minimum-scale=1.0,user-scalable=no">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>东方启音</title>
  <!--  公共样式-->
  <link rel="stylesheet" href="css/comment.css">

  <style>
    html{
      background: black;
    }
    video{
      width: 100%;
      height: 300px;
      position: fixed;
      top: 50%;
      transform: translateY(-50%);
    }
  </style>
</head>
<body>
<video controls autoplay muted src="./video/mangguo.mp4"></video>
</body>
</html>
